¡He Comido Pavo! = I have eaten turkey

You will hear more than once this sentence from Spaniards these days. It comes from a popular Xmas song. It is just a funny and cheeky way to sing to this festive time.

"Estar de mala uva" = To be of bad grape*

To be in a really bad mood. PLEASE! Do not confuse with "Tener mala uva" To be a nasty piece of work.
"Déjalo en paz, que está de mala uva"
"Se pone de mala uva cuando la gente llega tarde"
"No sé que le pasa ahora, pero está de una mala uva..."

Tirar los tejos= To throw the quoits*

To flirt, to chat someone up. A similar expression, an also informal, is "tirar los trastos a alguien"

"Le está tirando lo tejos claramente".
"Aprovechó la ocasión para tirarle los tejos".
"Si le tiras los tejos tan pronto, la/lo vas a cortar".